Home / 20,076.16-30,091.56-15,130.30

Finding the Fourth Proportional to 20,076.16, 30,091.56 and 15,130.30

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Solution

The fourth proportional to 20,076.16, 30,091.56 and 15,130.30 is: 22,678.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.16 : 30,091.56 = 15,130.30 : x
  2. Step 2: Convert to fraction form
    20,076.16/30,091.56 = 15,130.30/x
  3. Step 3: Cross multiply
    20,076.16x = 30,091.56 × 15,130.30
  4. Step 4: Simplify right side
    20,076.16x = 455,294,330.27
  5. Step 5: Solve for x
    x = 455,294,330.27/20,076.16
  6. Step 6: Final answer
    x = 22,678.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.